Metal roof-covering.



F. A. CLARK.

METAL ROOF COVERING.

APPLIOATION FILED un. e, 190e.

Patented June 8, 1969.

nventoz anar/mug 'UNITED srarns .PATENT OFFICE.

FREDRICK A. CLARK, F FREMONT, NEBRASKA.

y METAL ROOF-GOVERING.

No. 924,144. y

y To all whom 'it may concern.'

, useful Improvements in Metal Roof-Coverings, of which the following is a specification.

.This invention relates to improvements in metal roof covering, and has for its object the provision Aof ay covering for roofs of buildings, whichmay be quickly laid and which, comparatively, will not be expensive, the covering to conslst of metal plates, so formed that they may be packed within a limited space forl transportation purposes, and may be laid without the employment of skilled labor. l

The invention has reference to the use of rectangularly formed metal plates having parallel ridges which, in use, result in the orniation of air spaces between the plates and the roof boards or foundation upon which the plates arel secured, the rid es of each plate also being for the purpose o adding rlgidity to the balance of the plate, and to reinforce each other when used as a covering for the roof. r

The invention consists of the combination and arrangement of parts as described here- 1n, pointe out by the appended claim, and as illustrated in the drawing,-wherein-- Figure 1 is a plan view of a roof covering formed of plates, and embodying my invention. Fig. 2 is a sectional view upon any of lines a b, c d, or e f of Fig. 1. Fig. 3 is a sectional view upon lines g le, or z lc of Fi 1, a portion of roof board being adde. Figs. 4 and 5 are perspective views of metal plates employed. Fig.,6 is a broken away -1 end View of a portion of a roof, and showing courses of the metal plates.

Referring now to the drawing for a more particular descri tion, numeral 1 .indicates a roof covering, iormed by use of the' series 0f metal plates shown, respectively by numerals 2 and3; late 2 has parallel sldes 4 and arallel en s -5,fand is formed with para el vridges 6, and the ridges are parallel with its sides; these ridges consist of walls y 7 and 8 disposed, preferably, at right angles with reference to each otherl and projected 'outwardly from the same surface of the plate, adjacent sides 4; and bearlng-leaves 9 are formed between each ridge and one of Specification ol Letters Patent. l Application lled April 6, 1908. Sexa1No. 425,849.

Patented June s, 1909.

the side edges 5 of the plate, and a valley 10 is formed between ridges 6.

Plate 3 has parallel ends 1l, parallel sideedges 12 and a sin le ridge 13 extending midway between an substantially parallel with sides 12; ridge '13 has'walls 14 and l5 disposed at'a right angle, andthe plate extends laterally from the ridge to form bearing-leaves 16. The plates thus described are rectangular. in form with ridges formed thereon of similar extent, and they are each provided with perforations 21 extending crosswise and in alinement, near one of their ends, these being for the purpose of admit ting nails 25 for securing the plates upon `70 `resist bending' of the plates in directions transverse to said ridges. .Also as described, the metal plates may be conveniently used for the covering of a roof, and in forming the roof of a building, the first course is laid double and is composed of plates 2 and 3. The double or first course 17 is arranged Vby placing a series of plates 2 side by slde as shown in Fig. 2, and when thus placed their adjacent edges will form crevices 18; a layer of plates 2 is then placed upon the first layer to partly complete course 17, and thelr adjacent edges w1ll form crevices 19, and plates 3 are used as end` plates, to complete thls course'.

Fig. 2 illustrates a' section upon any of lines a b, c d, or e f of Fig. 1, and 1t w1ll be seen that the covering for the roof is composed principally of plates 2, and that, whlle plates 3 arev necessary', theyv are used only uponalternate courses, to complete the ends y of said alternate courses of the roof covering. Courses 22 and 23, vshown in Fig. 1, are laid as already described and as shown 1n Fig'.l 2,' except that plates 2 and 3 'are laidwith a portion of theirsurface to the weather. f

4When seams or crevices 19 are formed u on the top layer of a course as shown in Flg. 2, .they occur between ridges 6 or between ridges 6 and 13, and, in such cases,

prevents rusting of the plates, and the manvalleys 10 of the lower layer are interposed between bearing-leaves 9 and 16 and backing 20, and the valleys operate asrcarriers of water or other substances which may fall upon the roof; and when seams 18 occur upon the upper surface, as shown in Fig. 3, they are located between ridges 6; and Valleys 10 of the lower layer are interposed between leaves 9 and backing 20, to operate as a water shed. Rain Water When passing from the roof is conveyed upon valleys 10, between the upwardly-projecting ridges 6, and bet'ween ridges G and 13.

In preparing thel metal plates theyare enameled upon both sides, which ei'ectually ner of laying them, closely adjacent each other, substantially prevents buckling, so common to metal roofs it being understood that the plates are laid in the manner of laying ordinary shingles.

The mctalplates thus described may be made without use of expensive machinery; they may be formed of any desired proportions, and when secured to the foundation or backing, the ridges of the plates will be reinforced by overlapping; and the air-spaces 24, formed between the metal plates and backing 20 are longitudinal recesses, Which l permit evaporation of moisture which often accumulates beneath the metal sheets or plates of a roof,

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is,-

A roof covering comprising a plurality of plates laid in the ordinary. manner of laying shingles, each of said plates comprising a pair of upstanding V shaped ridges 6, which extend entirely across said plates and which are parallel with the sides thereof, a central valley portion 10 which lies between said ridges, and a bearing leaf 9, upon the outer side of each of said ridges, said leaves lying in the same plane as the valley portion 10 and each of said leaves being substantially half the Width of said valley portion, whereby when said plates are laid in the manner oflaying shingles, said Valley portion will accommodate the abutting leaves of adjacent plates. n

In testimony whereof I have affixed my signature in presence of two witnesses.

FREDRICK A. CLARK.

Witnesses:

HIRAM A. STURGES, GEORGE W. CovELL. 

